122535535221 has 48 divisors (see below), whose sum is σ = 195991031808. Its totient is φ = 73154256000.

The previous prime is 122535535201. The next prime is 122535535223.

122535535221 is a `hidden beast` number, since 1 + 2 + 2 + 53 + 553 + 52 + 2 + 1 = 666.

122535535221 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 122535535221 - 2¹⁰ = 122535534197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122535535223) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1938700 + ... + 2000906.

It is an arithmetic number, because the mean of its divisors is an integer number (4083146496).

Almost surely, 2^122535535221 is an apocalyptic number.

122535535221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

122535535221 is a deficient number, since it is larger than the sum of its proper divisors (73455496587).

122535535221 is a wasteful number, since it uses less digits than its factorization.

122535535221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62522 (or 62519 counting only the distinct ones).

The product of its digits is 90000, while the sum is 36.

It can be divided in two parts, 122535 and 535221, that added together give a palindrome (657756).

The spelling of 122535535221 in words is "one hundred twenty-two billion, five hundred thirty-five million, five hundred thirty-five thousand, two hundred twenty-one".